IP Library Granted Patent US 9,492,577
Granted Patent B1
US 9,492,577 · App. 15/209,257 · Granted Nov 15, 2016

Decontamination enclosure and method

Inventor: Roderick M. Dayton (Strongsville, OH)
Assignee: DAYLIGHT MEDICAL, INC.
A61L2/10A61L2/24
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Quick Facts
Patent No.
US 9,492,577
App. No.
15/209,257
Granted
Nov 15, 2016
Kind
B1
Abstract

Provided are a method and apparatus for decontaminating personal protective equipment while it is being worn by a person. A booth having a plurality of internally-reflective surfaces defines an interior space with dimensions suitable for receiving a standing person wearing the personal protective equipment. A plurality of UVC light sources are arranged to emit UVC light into the booth, and are operational while the person wearing the personal protective equipment is within the interior space. A door is selectively closeable to enclose the interior space and interfere with UVC light escaping the interior of the booth into an ambient environment of the booth, and a controller is operable to selectively operate the UVC light sources while the person wearing the personal protective equipment is standing within the interior space.

Claims (50)

1. A decontamination apparatus comprising:

a booth having a plurality of internally-reflective surfaces that define an interior space having dimensions suitable for receiving a standing person wearing personal protective equipment;

a plurality of UVC light sources arranged to emit UVC light into the booth;

a door that is selectively closeable to enclose the interior space and interfere with UVC light escaping the interior of the booth into an ambient environment of the booth; and

a controller operable to selectively operate the UVC light sources while the person wearing the personal protective equipment is standing within the interior space, the controller being accessible to, and operable by the person wearing the personal protective equipment from within the interior space to allow the person to control operation of the UVC sources from within the interior space.

2. The decontamination apparatus of claim 1 , wherein the plurality of the UVC light sources are adjustable by the person from within the interior space while the UVC light sources are operational.

3. The decontamination apparatus of claim 2 , wherein the plurality of the UVC light sources are each coupled to an adjustable arm to render the UVC light sources adjustable relative to the interior space of the booth.

4. The decontamination apparatus of claim 1 further comprising a platform comprising a surface that is substantially transparent to UVC light on which the person wearing the personal protective equipment is to stand to allow a bottom surface of footwear being worn by the person to be exposed to the UVC light emitted by at least one of the UVC light sources.

5. The decontamination apparatus of claim 1 , wherein the controller comprises a timer operational to initiate deactivation of the UVC light sources after expiration of a predetermined period of time.

6. The decontamination apparatus of claim 5 , wherein the predetermined period of time is selectable from a plurality of pre-programmed time periods stored by the controller.

7. The decontamination apparatus of claim 1 further comprising a window provided to at least one side wall defining the interior space, the window being closed by a flexible material that is substantially transparent to visible light, but interferes with transmission of UVC light from the interior space to the ambient environment.

8. The decontamination apparatus of claim 1 further comprising a vent provided to at least one side wall defining the interior space to allow an exchange of air between the interior space and the ambient environment.

9. A decontamination apparatus comprising:

a booth having a plurality of internally-reflective surfaces that define an interior space having dimensions suitable for receiving a standing person wearing personal protective equipment;

a plurality of UVC light sources arranged to emit UVC light into the booth, the plurality of the UVC light sources being adjustable by the person from within the interior space while the UVC light sources are operational;

a door that is selectively closeable to enclose the interior space and interfere with UVC light escaping the interior of the booth into an ambient environment of the booth; and

a controller operable to selectively operate the UVC light sources while the person wearing the personal protective equipment is standing within the interior space.

10. The decontamination apparatus of claim 9 , wherein the controller is accessible to, and operable by the person wearing the personal protective equipment from within the interior space to allow the person to control operation of the UVC sources from within the interior space.

11. The decontamination apparatus of claim 9 , wherein the plurality of the UVC light sources are each coupled to an adjustable arm to render the UVC light sources adjustable relative to the interior space of the booth.

12. The decontamination apparatus of claim 9 further comprising a platform comprising a surface that is substantially transparent to UVC light on which the person wearing the personal protective equipment is to stand to allow a bottom surface of footwear being worn by the person to be exposed to the UVC light emitted by at least one of the UVC light sources.

13. The decontamination apparatus of claim 9 , wherein the controller comprises a timer operational to initiate deactivation of the UVC light sources after expiration of a predetermined period of time.

14. The decontamination apparatus of claim 13 , wherein the predetermined period of time is selectable from a plurality of pre-programmed time periods stored by the controller.

15. The decontamination apparatus of claim 9 further comprising a window provided to at least one side wall defining the interior space, the window being closed by a flexible material that is substantially transparent to visible light, but interferes with transmission of UVC light from the interior space to the ambient environment.

16. The decontamination apparatus of claim 9 further comprising a vent provided to at least one side wall defining the interior space to allow an exchange of air between the interior space and the ambient environment.

17. A decontamination apparatus comprising:

a booth having a plurality of internally-reflective surfaces that define an interior space having dimensions suitable for receiving a standing person wearing personal protective equipment;

a plurality of UVC light sources arranged to emit UVC light into the booth;

a door that is selectively closeable to enclose the interior space and interfere with UVC light escaping the interior of the booth into an ambient environment of the booth;

a controller operable to selectively operate the UVC light sources while the person wearing the personal protective equipment is standing within the interior space; and

a platform comprising a surface that is substantially transparent to UVC light on which the person wearing the personal protective equipment is to stand to allow a bottom surface of footwear being worn by the person to be exposed to the UVC light emitted by at least one of the UVC light sources.

18. The decontamination apparatus of claim 17 , wherein the controller is accessible to, and operable by the person wearing the personal protective equipment from within the interior space to allow the person to control operation of the UVC sources from within the interior space.

19. The decontamination apparatus of claim 17 , wherein the plurality of the UVC light sources are adjustable by the person from within the interior space while the UVC light sources are operational.

20. The decontamination apparatus of claim 19 , wherein the plurality of the UVC light sources are each coupled to an adjustable arm to render the UVC light sources adjustable relative to the interior space of the booth.

21. The decontamination apparatus of claim 17 , wherein the controller comprises a timer operational to initiate deactivation of the UVC light sources after expiration of a predetermined period of time.

22. The decontamination apparatus of claim 21 , wherein the predetermined period of time is selectable from a plurality of pre-programmed time periods stored by the controller.

23. The decontamination apparatus of claim 17 further comprising a window provided to at least one side wall defining the interior space, the window being closed by a flexible material that is substantially transparent to visible light, but interferes with transmission of UVC light from the interior space to the ambient environment.

24. The decontamination apparatus of claim 17 further comprising a vent provided to at least one side wall defining the interior space to allow an exchange of air between the interior space and the ambient environment.

25. A decontamination apparatus comprising:

a booth having a plurality of internally-reflective surfaces that define an interior space having dimensions suitable for receiving a standing person wearing personal protective equipment;

a plurality of UVC light sources arranged to emit UVC light into the booth;

a door that is selectively closeable to enclose the interior space and interfere with UVC light escaping the interior of the booth into an ambient environment of the booth;

a controller operable to selectively operate the UVC light sources while the person wearing the personal protective equipment is standing within the interior space; and

a window provided to at least one side wall defining the interior space, the window being closed by a flexible material that is substantially transparent to visible light, but interferes with transmission of UVC light from the interior space to the ambient environment.

26. The decontamination apparatus of claim 25 , wherein the controller is accessible to, and operable by the person wearing the personal protective equipment from within the interior space to allow the person to control operation of the UVC sources from within the interior space.

27. The decontamination apparatus of claim 25 , wherein the plurality of the UVC light sources are adjustable by the person from within the interior space while the UVC light sources are operational.

28. The decontamination apparatus of claim 27 , wherein the plurality of the UVC light sources are each coupled to an adjustable arm to render the UVC light sources adjustable relative to the interior space of the booth.

29. The decontamination apparatus of claim 25 further comprising a platform comprising a surface that is substantially transparent to UVC light on which the person wearing the personal protective equipment is to stand to allow a bottom surface of footwear being worn by the person to be exposed to the UVC light emitted by at least one of the UVC light sources.

30. The decontamination apparatus of claim 25 , wherein the controller comprises a timer operational to initiate deactivation of the UVC light sources after expiration of a predetermined period of time.

31. The decontamination apparatus of claim 30 , wherein the predetermined period of time is selectable from a plurality of pre-programmed time periods stored by the controller.

32. The decontamination apparatus of claim 25 further comprising a vent provided to at least one side wall defining the interior space to allow an exchange of air between the interior space and the ambient environment.

Assignments (14)
SECURITY INTEREST Recorded Nov 14, 2025
From: CHEM-AQUA, INC.; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; NCH CORPORATION; NCH LIFE SCIENCES LLC; SOLENIS TECHNOLOGIES, L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 073570/0838 →
RELEASE OF SECURITY INTEREST Recorded Nov 14, 2025
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: BIRKO CORPORATION; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 073564/0864 →
SECURITY AGREEMENT (NOTES) Recorded Oct 10, 2025
From: DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 073061/0885 →
RELEASE OF 2023 NOTES PATENT SECURITY INTERESTS Recorded Oct 10, 2025
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
To: BIRKO CORPORATION; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 073074/0198 →
SECURITY AGREEMENT (2024 NOTES) Recorded Jun 24, 2024
From: BIRKO CORPORATION; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 067824/0278 →
RELEASE OF SECURITY AGREEMENT REEL/FRAME 045300/0141 Recorded Jul 10, 2023
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DIVERSEY, INC.; THE BUTCHER COMPANY
Reel/Frame 064236/0722 →
2021 NOTES PATENT SECURITY AGREEMENT Recorded Jul 7, 2023
From: BIRKO CORPORATION; SOLENIS TECHNOLOGIES, L.P.; INNOVATIVE WATER CARE, LLC; DIVERSEY, INC.; DIVERSEY TASKI, INC.
To: BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 064225/0576 →
2023 NOTES PATENT SECURITY AGREEMENT Recorded Jul 7, 2023
From: BIRKO CORPORATION; SOLENIS TECHNOLOGIES, L.P.; INNOVATIVE WATER CARE, LLC; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE GLOBAL CORPORATION
To: BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 064225/0170 →
NOTES PATENT SECURITY AGREEMENT Recorded Jul 7, 2023
From: BIRKO CORPORATION; SOLENIS TECHNOLOGIES, L.P.; INNOVATIVE WATER CARE, LLC; DIVERSEY, INC.; DIVERSEY TASKI, INC.
To: BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 064348/0235 →
ABL PATENT SECURITY AGREEMENT Recorded Jul 6, 2023
From: BIRKO CORPORATION; SOLENIS TECHNOLOGIES, L.P.; INNOVATIVE WATER CARE, LLC; DIVERSEY, INC.; DIVERSEY TASKI, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 064222/0751 →
TERM LOAN PATENT SECURITY AGREEMENT Recorded Jul 6, 2023
From: BIRKO CORPORATION; SOLENIS TECHNOLOGIES, L.P.; INNOVATIVE WATER CARE, LLC; DIVERSEY, INC.; DIVERSEY TASKI, INC.
To: GOLDMAN SACHS BANK USA
Reel/Frame 064223/0526 →
SECURITY AGREEMENT Recorded Feb 9, 2018
From: DIVERSEY, INC.; THE BUTCHER COMPANY
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 045300/0141 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 26, 2017
From: DAYLIGHT MEDICAL, INC.
To: DIVERSEY, INC.
Reel/Frame 042513/0550 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 10, 2016
From: DAYTON, RODERICK M.
To: DAYLIGHT MEDICAL, INC.
Reel/Frame 039975/0745 →
Continuity (2)
Continuation PCTUS2015058807 · Nov 3, 2015
Provisional Application 62074191 · Nov 3, 2014